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Zero Spam for WordPress vulnerabilities
Zero Spam for WordPress has 4 known vulnerabilities in this database. The most recent published record is dated 6 Oct 2026.
- Known vulnerabilities
- 4
- Active installs
- 20,000+
- Latest version
- 5.7.11
- Last updated
- 23 Sep 2026
- Most recent
- 6 Oct 2026
No fixed version has been published yet, so consider disabling, removing or replacing the plugin until a safe release is available.
Find it in your WordPress dashboard under Plugins. Severity is based on the CVSS score published with the CVE where one is available.
| Vulnerability | Severity | Affected | Fix | Published |
|---|---|---|---|---|
| Security weakness CVE-2026-105057 | Medium 5.3 | Up to 5.7.11 | No fixed version yet | 1 d ago |
| Cross-site scripting (XSS) CVE-2026-96752 | High 7.2 | Up to 5.7.10 | Fixed in a later version (latest 5.7.11) | 12 d ago |
| SQL injection CVE-2023-32121 | High 7.6 | Up to 5.4.4 | Fixed in a later version (latest 5.7.11) | 3 Nov 2023 |
| SQL injection CVE-2022-0254 | Critical 9.8 | Before 5.2.11 | Fixed in 5.2.11 | 14 Mar 2022 |
Read the published descriptions
- CVE-2026-105057, 6 Oct 2026
- Unauthenticated Bypass Vulnerability in Zero Spam <= 5.7.11 versions. CVE record
- CVE-2026-96752, 25 Sep 2026
- The Zero Spam for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Nested POST Array Keys via Contact Form 7 Integration in all versions up to, and including, 5.7.10 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The payload is delivered by submitting a Contact Form 7 request with a nested POST array key containing arbitrary HTML or JavaScript - PHP parses the field name into a nested array key, which is stored verbatim in the zerospam_log.submission_data column when Zero Spam flags the submission as spam due to the absence of the zerospam_david_walsh_key field. CVE record
- CVE-2023-32121, 3 Nov 2023
- Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in Highfivery LLC Zero Spam for WordPress allows SQL Injection.This issue affects Zero Spam for WordPress: from n/a through 5.4.4. CVE record
- CVE-2022-0254, 14 Mar 2022
- The WordPress Zero Spam WordPress plugin before 5.2.11 does not properly sanitise and escape the order and orderby parameters before using them in a SQL statement in the admin dashboard, leading to a SQL injection CVE record
What to do if you run Zero Spam for WordPress
If you run Zero Spam for WordPress, open WordPress and check the installed version in Plugins. Compare it with the affected versions in the vulnerability record. If a fixed version is available, take a current backup and update to that version or the latest supported release.
If no fixed version exists, consider disabling and removing the plugin or replacing it with a maintained alternative. After dealing with the affected software, check administrator users, unexpected file changes, redirects, unfamiliar pages and security logs for signs that the site may already have been altered.
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